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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Mighty Micros: Thor vs. Loki

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76091 Mighty Micros: Thor vs. Loki

70 pieces in 39 part and color combinations, plus 2 minifigures.

The official piece count includes the 9 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

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Piece checklist

Light Bluish Gray 19 pieces

  • Animal / Creature Body Part, Wing Feathered Light Bluish Gray Part 11100 Element 6074698 ×2
  • Bracket 1 x 2 - 1 x 4 [Rounded Corners] Light Bluish Gray Part 10201 Element 6014615 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×2
  • Plate Special 1 x 4 Offset with Bar Holes Light Bluish Gray Part 4590 Element 6302648 or 6138067 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Light Bluish Gray Part 3829c01 Element 4226995 ×2
  • Tool Hammer / Sledgehammer Light Bluish Gray Part 75904 Element 6004729 ×1
  • Vehicle Base 4 x 4 x 2/3 with Wheel Clip Pins, Wedge, 2 x 2 Recessed Center with Hole Light Bluish Gray Part 24326 Element 6134236 ×2
  • Wheel 8 x 6 with Slot Light Bluish Gray Part 34337 Element 6194808 1 spare in the box ×4
  • Wheel 8 x 9 with Hole Notched for Wheels Holder Pin, Re-inforced Back Light Bluish Gray Part 74967 Element 6011375 ×4

Black 10 pieces

  • Bracket 1 x 2 - 1 x 2 Black Part 99781 Element 6016172 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
  • Tyre 14 x 4 Smooth Small Single [New Style] Black Part 59895 Element 4516843 or 4507700 ×4
  • Tyre 14 x 9 Smooth Small Wide Slick Black Part 30028 Element 4508215 or 3002826 ×4

Pearl Gold 9 pieces

  • Brick Wedged, Curved 1 x 2 x 2/3 No Studs, Wing End Pearl Gold Part 47458 Element 6375715 or 6114676 ×1
  • Handlebars with Angular Handles Pearl Gold Part 98397 Element 6168729 ×1
  • Tile 1 x 2 with Groove Pearl Gold Part 3069b Element 6107197 ×2
  • Tile Special 1 x 1 with Clip with Rounded Edges Pearl Gold Part 15712 Element 6262138 or 6071259 ×4
  • Weapon Lightsaber Hilt with Bottom Ring Pearl Gold Part 64567 Element 6003147 1 spare in the box ×1

Flat Silver 6 pieces

  • Engine / Air Scoop 2 x 2 Flat Silver Part 50943 Element 6076604 ×1
  • Large Figure Weapon Claw, with Clip Flat Silver Part 92220 Element 6214125 or 4659335 ×2
  • Plate Round 1 x 1 with Solid Stud Flat Silver Part 6141 Element 4633691 1 spare in the box ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Flat Silver Part 2412b Element 4619636 ×1

Green 5 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Green Part 99780 Element 6099243 ×2
  • Brick Curved 2 x 2 with Lip, No Studs Green Part 30602 Element 6110002 or 4168487 ×1
  • Brick Wedged, Curved 3 x 4 x 2/3 Cutout Green Part 11291 Element 6179681 or 6170797 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Green Part 4032a Element 403228 ×1

Tan 5 pieces

  • Bracket 1 x 2 - 2 x 2 Inverted Tan Part 99207 Element 6174925 ×2
  • Brick Special 1 x 1 with Headlight Tan Part 4070 Element 4280137 or 4118793 ×2
  • Plate Special 1 x 2 with Clip Horizontal on Side Tan Part 11476 Element 6313119 or 6177314 ×1

Trans-Brown 3 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Brown Part 54200 Element 6245263 or 4244368 1 spare in the box ×2
  • Panel 1 x 2 x 1 [Rounded Corners] Trans-Brown Part 4865b Element 6514123 or 6246893 ×1

Trans-Light Blue 3 pieces

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Light Blue Part 30153 Element 6513972 or 6247792 ×1
  • Wave / Lightning Angular, Single Trans-Light Blue Part 27256 Element 6168590 ×2

Metallic Gold 2 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Metallic Gold Part 54200 Element 6546111 or 6191668 1 spare in the box ×2

Trans-Clear 2 pieces

  • Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 1 spare in the box ×2

Trans-Orange 2 pieces

  • Cone 1 x 1 [Top Groove] Trans-Orange Part 59900 Element 6514017 or 6172233 ×2

Trans-Yellow 2 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Yellow Part 54200 Element 6245272 or 4260942 1 spare in the box ×2

Dark Bluish Gray 1 piece

  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×1

Dark Tan 1 piece

  • Vehicle Base 4 x 4 x 1 1/3 with Wheel Arches, 2 x 2 Recessed Center and Hole Dark Tan Part 24151 Element 6177186 ×1

Minifigures 2 figures

  • Loki, Short Legs Minifigure, checked as a whole figure ×1
  • Thor with Short Legs Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.